1 files changed, 46 insertions, 0 deletions
diff --git a/oneTimePad.py b/oneTimePad.py
new file mode 100644
index 0000000..7f2e1eb
--- /dev/null
+++ b/oneTimePad.py
@@ -0,0 +1,46 @@
+def alphabetEncrypt():
+    inp = input("Enter a message: ")
+    key = input("Enter key: ")
+    output = ""
+    for i in range(len(inp)):
+        output = output + chr((ord(inp[i])+ord(key[i])-194)%26 + 97)
+    print(output)
+
+def alphabetDecrypt():
+    inp = input("Enter a ciphertext: ")
+    key = input("Enter the key: ")
+    output = ""
+    for i in range(len(inp)):
+        working = ord(inp[i])-ord(key[i])
+        if working < 0:
+            working += 26
+        else:
+            working %= 26
+        working += 97
+        output = output + chr(working)
+    print(output)
+
+def xorEncryptDecrypt(inp):
+    key = input("Enter a key: ")
+    inpb = ""
+    for char in inp:
+        inpb = inpb + format(ord(char), "08b")
+    keyb = ""
+    for char in key:
+        keyb = keyb + format(ord(char), "08b")
+    xor = int(inpb, 2) ^ int(keyb, 2)
+    result = bin(xor)[2:].zfill(len(inpb))
+    chunks = []
+    for i in range(0, len(result), 8):
+        chunks.append(result[i:i+8])
+    print(chunks)
+    output = ""
+    for chunk in chunks:
+        output = output + (chr(int(chunk,2)))
+    return output
+
+alphabetEncrypt()
+alphabetDecrypt()
+output  = xorEncryptDecrypt("Hello")
+print(output)
+print("\n\n",xorEncryptDecrypt(output))